The mean of the data is 15. What number is missing?
18,16,__,9,12,23

12

Step-by-step explanation:

The missing number can be calculated by using the formula:

mean = (sum of data)÷(number of data points)

15 =

90 = 18+16+x+9+12+23

x=90-18-16-9-12-23

x=12

To check, just take the mean while including the found value for x:

mean = = = 15

easy math just plug in a and b

step-by-step explanation:

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out